Shimano Dura-Ace Di2 FD-R9250 front derailleur braze on

Change the chainring extremely quickly

Despite the smaller and lighter construction, the DURA-ACE FD-R9250 offers the fastest front derailleur switching function on the market.

The fastest shifting is now even faster thanks to the DURA-ACE FD-R9250 front derailleur. Compared to the FD-R9150, currently the fastest front derailleur on the market, the new design with a weight of less than 100 grams ensures 45% faster gear changes at the front. The frontal attack surface of the FD-R9250 has also been reduced to reduce air resistance.

Highlights

• Fastest front derailleur function ever, 45% faster than FD-R9150
• Slimmer, flatter and lighter - the front area has been reduced by 33% and the weight saved to 96g
• Largest chainring: 50-55 teeth

specification

Technologies used

In this chapter we explain the technologies that the manufacturer uses for this product.

HYPERGLIDE +
The newly designed cassette and chain of the HYPERGLIDE + drive represent the new generation of driving - with improved speed, shifting efficiency and smoothness on any terrain.
Advantages and features. The better chain binding, the greater holding power and more even pedaling ensure more power and a safe driving experience in rapidly changing terrain. The clearly defined upshifts and downshifts in both directions promotes the driver's concentration and supports acceleration. The highly efficient drive with more even power transmission ensures more comfort and less stress. The large selection of gears and cassettes and the combination with one or two chainrings offers support for many different riding styles, levels of experience and preferences.

E-Tube Project - settings that can be adjusted via the app
The E-Tube Project application for mobile devices developed by Shimano has functions for customizing the bike, updating the firmware and for maintenance using a wireless connection to the bike. More detailed maintenance of the bike is possible by connecting the bike to the E-Tube Project for Windows V4 application using a cable.

scope of delivery

• 1 x Shimano Dura-Ace Di2 FD-R9250 front derailleur (see item description for details)